Professor Beomseok Jeon is the Medical Director of the Movement Disorder Center at Seoul National University Hospital. He is the past President of the Korean Movement Disorder Society, and served as the International Delegate of the Korean Neurological Association. He is currently the Vice-President of Asia-Oceanian Association of Neurology, International Executive Committee and Finance Committee member of Movement Disorder Society, and Chair-elect of MDS-AOS. Dr. Jeon graduated from Seoul National University College of Medicine, and completed his neurology residency both at Seoul National University Hospital (1983-1987) and at the University of Minnesota (1987-1991), and then had movement disorder fellowship under Dr. Stanley Fahn at Columbia University (1991-1993). He also studied basic neurosciences under Dr. Robert Burke as H. Houston Merritt Fellow (1997-1998) at Columbia University. Dr. Jeon has extensively studied genetics in Korean patients with parkinsonism, and is currently interested in medical and surgical treatment of advanced parkinsonism. He has published over 260 peer reviewed articles, and wrote eight book chapters and three books for patients and families with Parkinson’s disease and ataxia.